Magnetoplasmons in quantum rings

Details Magnetoplasmons in quantum rings Magnetoplasmons in quantum rings

1999-02-26

arxiv.org/abs/cond-mat/9902365v1

Phys. Rev. B59,(1999) 15301

Physics

Condensed Matter

Typeset using Revtex, 13 pages and 11 Postscript figures

Scientific paper

10.1103/PhysRevB.59.15301

We have studied the structure and dipole charge density response of nanorings as a function of the magnetic field using local-spin density functional theory. Two small rings consisting of 12 and 22 electrons confined by a positively charged background are used to represent the cases of a narrow and a wide ring. The results are qualitatively compared with experimental data existing on microrings and on antidots. A smaller ring containing 5 electrons is also analyzed to allow for a closer comparison with a recent experiment on a two electron quantum ring.

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